510(k) · Cleared
ClearedConnector System
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Orthofix, Inc. · NKG Posterior Cervical Screw System
Cleared on May 11, 2017 as substantially equivalent to K150822 (Orthofix, Inc., 2015) and 4 other predicates after a 69-day review. Its family tree reaches back 16 generations to 2004. 18 later devices descend from it.
- Decided
- May 11, 2017
- Review
- 69 days
- Class
- Class II
- Product code
- NKG
- Recalls
- None
- Predicates
- 5
Its longest line of descent runs back 16 generations to K040583 (2004). 254 ancestors in all, the oldest K781443 (1978). 18 later devices descend from it, 3 citing it directly.
- Root · 16 generations backK040583 Modification to: CD Horizon Spinal SystemMedtronic Sofamor Danek · 2004
- 12 generations between
- 3 generations backK130932 Firebird Spinal Fixation SystemOrthofix, Inc. · 2013 · Recalled
- 2 generations backK151488 Firebird Spinal Fixation System/Phoenix MIS Spinal Fixation SystemOrthofix, Inc. · 2015 · Recalled
- 1 generation backK153428 Firebird Spinal Fixation System, Phoenix MIS Spinal Fixation SystemOrthofix, Inc. · 2016 · Recalled
- This deviceK170647 Connector SystemOrthofix, Inc. · 2017
- Descendant · cites it directly · 16 of its ownK172194 Connector SystemOrthofix, Inc. · 2017 · Recalled
- Descendant · cites it directly · 8 of its ownK183639 Mariner Outrigger Revision SystemSeaSpine Orthopedics Corporation · 2019
- Descendant · 2 generations on · 7 of its ownK193396 PERLA® TL posterior osteosynthesis systemSpineart · 2020 · Recalled
- Descendant · 3 generations on · 4 of its ownK203222 PERLA TL Posterior Osteosynthesis SystemSpineart · 2020
- Descendant · 3 generations on · 3 of its ownK203506 PERLA® TL posterior osteosynthesis systemSpineart · 2021 · Recalled
Show all 16 generations
- Root · 16 generations backK040583 Modification to: CD Horizon Spinal SystemMedtronic Sofamor Danek · 2004
- 15 generations backK041118 Modification to CD Horizon Spinal SystemMedtronic Sofamor Danek · 2004
- 14 generations backK042025 Modification to CD Horizon Spinal SystemMedtronic Sofamor Danek, Inc. · 2004 · Recalled
- 13 generations backK043151 Modification to: CD Horizon Spinal SystemMedtronic Sofamor Danek · 2005
- 12 generations backK050809 CD Horizon Spinal SystemMedtronic Sofamor Danek USA, Inc. · 2005
- 11 generations backK052187 Modification to: CD Horizon Spinal SystemMedtronic Sofamor Danek · 2005
- 10 generations backK053101 CD Horizon Spinal SystemMedtronic Sofamor Danek · 2006
- 9 generations backK091442 CD Horizon Spinal SystemMedtronic Sofamor Danek · 2009
- 8 generations backK091974 Modification to CD Horizon Spinal SystemMedtronic Sofamor Danek USA, Inc. · 2009 · Recalled
- 7 generations backK102555 CD Horizon Spinal SystemMedtronic Sofamor Danek USA, Inc. · 2010
- 6 generations backK112473 CD Horizon Spinal SystemMedtronic Sofamor Danek, Inc. · 2011
- 5 generations backK113174 CD Horizon Spinal SystemMedtronic Sofamor Danek USA, Inc. · 2011 · Recalled
- 4 generations backK121630 Range Spinal SystemK2m, Inc. · 2012
- 3 generations backK130932 Firebird Spinal Fixation SystemOrthofix, Inc. · 2013 · Recalled
- 2 generations backK151488 Firebird Spinal Fixation System/Phoenix MIS Spinal Fixation SystemOrthofix, Inc. · 2015 · Recalled
- 1 generation backK153428 Firebird Spinal Fixation System, Phoenix MIS Spinal Fixation SystemOrthofix, Inc. · 2016 · Recalled
- This deviceK170647 Connector SystemOrthofix, Inc. · 2017
Showing 5 of 18 descendants. See all descendants
Descendants cleared per year
Most influential descendants
Showing 5 of 18 · See all- K172194Connector SystemOrthofix, Inc. · 2017 · cites it directly16descendants
- K183639Mariner Outrigger Revision SystemSeaSpine Orthopedics Corporation · 2019 · cites it directly8descendants
- K193396PERLA® TL posterior osteosynthesis systemSpineart · 2020 · 2 generations on7descendants
- K203222PERLA TL Posterior Osteosynthesis SystemSpineart · 2020 · 3 generations on4descendants
- K203506PERLA® TL posterior osteosynthesis systemSpineart · 2021 · 3 generations on3descendants
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −16 | K040583 | Modification to: CD Horizon Spinal System | Medtronic Sofamor Danek | 2004 | — |
| −15 | K041118 | Modification to CD Horizon Spinal System | Medtronic Sofamor Danek | 2004 | — |
| −14 | K042025 | Modification to CD Horizon Spinal System | Medtronic Sofamor Danek, Inc. | 2004 | 4 |
| −13 | K043151 | Modification to: CD Horizon Spinal System | Medtronic Sofamor Danek | 2005 | — |
| −12 | K050809 | CD Horizon Spinal System | Medtronic Sofamor Danek USA, Inc. | 2005 | — |
| −11 | K052187 | Modification to: CD Horizon Spinal System | Medtronic Sofamor Danek | 2005 | — |
| −10 | K053101 | CD Horizon Spinal System | Medtronic Sofamor Danek | 2006 | — |
| −9 | K091442 | CD Horizon Spinal System | Medtronic Sofamor Danek | 2009 | — |
| −8 | K091974 | Modification to CD Horizon Spinal System | Medtronic Sofamor Danek USA, Inc. | 2009 | 1 |
| −7 | K102555 | CD Horizon Spinal System | Medtronic Sofamor Danek USA, Inc. | 2010 | — |
| −6 | K112473 | CD Horizon Spinal System | Medtronic Sofamor Danek, Inc. | 2011 | — |
| −5 | K113174 | CD Horizon Spinal System | Medtronic Sofamor Danek USA, Inc. | 2011 | 1 |
| −4 | K121630 | Range Spinal System | K2m, Inc. | 2012 | — |
| −3 | K130932 | Firebird Spinal Fixation System | Orthofix, Inc. | 2013 | 1 |
| −2 | K151488 | Firebird Spinal Fixation System/Phoenix MIS Spinal Fixation System | Orthofix, Inc. | 2015 | 1 |
| −1 | K153428 | Firebird Spinal Fixation System, Phoenix MIS Spinal Fixation System | Orthofix, Inc. | 2016 | 1 |
| 0 (this device) | K170647 | Connector System | Orthofix, Inc. | 2017 | — |
| +1 | K172194 | Connector System | Orthofix, Inc. | 2017 | 2 |
| +1 | K183639 | Mariner Outrigger Revision System | SeaSpine Orthopedics Corporation | 2019 | — |
| +2 | K193396 | PERLA® TL posterior osteosynthesis system | Spineart | 2020 | 2 |
| +3 | K203222 | PERLA TL Posterior Osteosynthesis System | Spineart | 2020 | — |
| +3 | K203506 | PERLA® TL posterior osteosynthesis system | Spineart | 2021 | 2 |
Other ancestors by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 1978 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1990 | 2 | 0 |
| 1992 | 5 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 7 | 0 |
| 1996 | 9 | 0 |
| 1997 | 8 | 0 |
| 1998 | 15 | 0 |
| 1999 | 9 | 0 |
| 2000 | 18 | 0 |
| 2001 | 21 | 0 |
| 2002 | 19 | 0 |
| 2003 | 18 | 0 |
| 2004 | 26 | 0 |
| 2005 | 17 | 0 |
| 2006 | 12 | 0 |
| 2007 | 5 | 0 |
| 2008 | 15 | 0 |
| 2009 | 4 | 0 |
| 2010 | 7 | 0 |
| 2011 | 7 | 0 |
| 2012 | 4 | 0 |
| 2015 | 2 | 0 |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 2017 | 1 | 0 |
| 2019 | 2 | 0 |
| 2020 | 2 | 0 |
| 2021 | 3 | 0 |
| 2022 | 2 | 0 |
| 2023 | 4 | 0 |
| 2024 | 1 | 0 |
| 2025 | 1 | 0 |
| 2026 | 2 | 0 |
Sources: FDA 510(k) database (decision fields), the FDA summary (predicates and indications), FDA recall and enforcement reports, and MAUDE; processed by 510(k) Report. Verify on FDA.gov · Methodology and accuracy.
Planning a device in NKG? A 510(k) Report weighs predicate choices, recall history and review times for a new device like this one.
Top candidate predicates for a new NKG device
- #1 K252327 CMORE® CT System; CMORE® CT System Navigated…score 19.6 · 22 generations · no Class I recall
- #2 Held for the reportin the report
- #3 Held for the reportin the report
What was it cleared against? (5)
Devices the submitter claimed this one is substantially equivalent to (*), and reference devices cited for a specific test or feature (†), as written in the FDA summary.
| Type | Number | Device | Decided |
|---|---|---|---|
| * | K150822 | Centurion POCT SystemSummary page 5….3050, and 21 CFR § 888.3060 Review Panel: Orthopedic Device Panel Primary Predicate Devices: 1. K150822 – Centurion POCT System – Orthofix 2. K080407 – Spinal Fixation System – Orthofix Additional Predic… | 2015 |
| * | K080407 | Blackstone SFS Parallel Rod ConnectorsSummary page 5…Orthopedic Device Panel Primary Predicate Devices: 1. K150822 – Centurion POCT System – Orthofix 2. K080407 – Spinal Fixation System – Orthofix Additional Predicate Devices: K111183 – Ascent POCT System – Orth… | 2008 |
| * | K111183 | Ascent Posterior Occipital Thoracic (Poct) System (Titanium & Cobalt Chrome Rods)Summary page 5…– Centurion POCT System – Orthofix 2. K080407 – Spinal Fixation System – Orthofix Additional Predicate Devices: K111183 – Ascent POCT System – Orthofix K153428 – Firebird Spinal Fixation System/Phoenix MIS Spinal… | 2011 |
| * | K153428 | Firebird Spinal Fixation System, Phoenix MIS Spinal Fixation SystemSummary page 5…80407 – Spinal Fixation System – Orthofix Additional Predicate Devices: K111183 – Ascent POCT System – Orthofix K153428 – Firebird Spinal Fixation System/Phoenix MIS Spinal Fixation System – Orthofix… | 2016 |
| * | K110070 | TSRH Spinal SystemSummary page 5…K153428 – Firebird Spinal Fixation System/Phoenix MIS Spinal Fixation System – Orthofix K110070 – TSRH Spinal System – Medtronic Sofamor Danek USA Reference Device: K133350 – Revere Stabilization System – Globus M… | 2011 |
| † | K133350 | Revere Stabilization System | 2014 |
| † | K130877 | Expedium Spine System | 2013 |
What descends from it? (18)
See all 183 later devices cite it directly; ranked here by how many devices descend from each in turn.
Has anything in its family been recalled? (0 Class I)
No FDA recall names this device.
No ancestor or descendant has a Class I recall.
What does this lineage say?
- The line of descent spans 13 years and passes through 5 companies; a new generation was cleared every 7 months on median.
- 30 of the 254 ancestors have a recall of any class.
- Of its descendants, K172194 (Orthofix, Inc., 2017) has gone furthest, with 16 descendants of its own.
- 1 other device also cites its predicate K150822.
How does its category compare?
All NKG devicesNKG Posterior Cervical Screw System: FDA decisions, review times, recalls and adverse event reports over 20 years. 2017, this device’s year, is highlighted.
FDA decisions per year · NKG
6in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · NKG
58in 2025
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · NKG
2in 2020
Class I (0 since 2007) Class II/III not classified
Adverse event reports per year · NKG
153in 2025
MAUDE reports naming product code NKG, not matched to any one device; reports are not rates.
View these four charts as a table
| Year | Decisions | Median 510(k) review, days | Recalls (Class I) | MAUDE reports |
|---|---|---|---|---|
| 2007 | 0 | — | 0 | 0 |
| 2008 | 0 | — | 0 | 0 |
| 2009 | 0 | — | 0 | 0 |
| 2010 | 0 | — | 0 | 0 |
| 2011 | 0 | — | 0 | 0 |
| 2012 | 0 | — | 0 | 0 |
| 2013 | 0 | — | 0 | 0 |
| 2014 | 0 | — | 0 | 0 |
| 2015 | 17 | 71 | 0 | 4 |
| 2016 | 16 | 87 | 0 | 73 |
| 2017 | 15 | 108 | 0 | 99 |
| 2018 | 12 | 61 | 1 | 127 |
| 2019 | 8 | 50 | 1 | 214 |
| 2020 | 14 | 59 | 2 | 236 |
| 2021 | 7 | 56 | 0 | 704 |
| 2022 | 7 | 108 | 0 | 175 |
| 2023 | 10 | 58 | 0 | 131 |
| 2024 | 3 | 100 | 0 | 206 |
| 2025 | 6 | 58 | 0 | 153 |
| 2026 | 4 | 169 | 0 | — |
What is it indicated for?
When used with the Centurion POCT System or Ascent POCT System for Posterior Occipital-Cervical-Thoracic (Occ – T3) The Connector System is intended to provide immobilization and stabilization of spinal segments as an adjunct to fusion for the following acute and chronic instabilities of the craniocervical junction, the cervical spine (C1 to C7) and the thoracic spine (T1 – T3): traumatic spinal fractures and/or traumatic dislocations; instability or…
Read the full statement (324 words)
When used with the Centurion POCT System or Ascent POCT System for Posterior Occipital-Cervical-Thoracic (Occ – T3)
The Connector System is intended to provide immobilization and stabilization of spinal segments as an adjunct to fusion for the following acute and chronic instabilities of the craniocervical junction, the cervical spine (C1 to C7) and the thoracic spine (T1 – T3): traumatic spinal fractures and/or traumatic dislocations; instability or deformity; failed previous fusions (e.g. pseudoarthrosis); tumors involving the cervical/thoracic spine; and degenerative disease, including intractable radiculopathy and/or myelopathy, neck and/or arm pain of discogenic origin as confirmed by radiographic studies, and degenerative disease of the facets with instability. The Connector System is also intended to restore the integrity of the spinal column even in the absence of fusion for a limited time period in patients with advanced stage tumors involving the cervical spine in whom life expectancy is of insufficient duration to permit achievement of fusion.
When used with the Firebird Spinal Fixation System/Phoenix MIS Spinal Fixation System or Spinal Fixation System (SFS) for Thoracic, Lumbar, and Sacral Spine Fixation (T1-S2/Ilium)
The Connector System is intended to provide immobilization and stabilization of spinal segments in skeletally mature patients as an adjunct to fusion as a pedicle screw fixation system (T1-S2/Ilium), or as an anterolateral fixation system (T8-L5), in the treatment of the following acute and chronic instabilities or deformities:
1. degenerative disc disease (defined as discogenic back pain with degeneration of the disc confirmed by history and radiographic studies)
2. spondylolisthesis,
3. trauma (i.e., fracture or dislocation),
4. spinal stenosis,
5. deformities or curvatures (i.e., scoliosis, kyphosis, and/or lordosis),
6. tumor,
7. pseudoarthrosis, and
8. failed previous fusion
When used for posterior pedicle screw fixation in pediatric patients, the Connector System implants are indicated as an adjunct to fusion to treat adolescent idiopathic scoliosis. Pediatric pedicle screw fixation is limited to a posterior approach. The Connector System is intended to be used with autograft or allograft.
Indications for use as stated in the FDA summary.
https://510kreport.com/device/K170647 · printed Nov 6, 2026
Cite this page
510(k) Report. “K170647: Connector System.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K170647
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Record history
- FDA decision record loaded May 2, 2026
- Summary read Oct 13, 2026 (extraction version 9eaa42aa01ed)
- Lineage and recalls computed Nov 3, 2026
- Page last updated Nov 3, 2026